EP0357323A3 - Dispositif de tête de lecture optique - Google Patents

Dispositif de tête de lecture optique Download PDF

Info

Publication number
EP0357323A3
EP0357323A3 EP19890308520 EP89308520A EP0357323A3 EP 0357323 A3 EP0357323 A3 EP 0357323A3 EP 19890308520 EP19890308520 EP 19890308520 EP 89308520 A EP89308520 A EP 89308520A EP 0357323 A3 EP0357323 A3 EP 0357323A3
Authority
EP
European Patent Office
Prior art keywords
sub
light receiving
reflected
main beam
ray
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19890308520
Other languages
German (de)
English (en)
Other versions
EP0357323A2 (fr
EP0357323B1 (fr
Inventor
Taizo Yokota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of EP0357323A2 publication Critical patent/EP0357323A2/fr
Publication of EP0357323A3 publication Critical patent/EP0357323A3/fr
Application granted granted Critical
Publication of EP0357323B1 publication Critical patent/EP0357323B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G11B7/0916—Foucault or knife-edge methods

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
EP89308520A 1988-09-02 1989-08-23 Dispositif de tête de lecture optique Expired - Lifetime EP0357323B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP219712/88 1988-09-02
JP63219712A JPH0758559B2 (ja) 1988-09-02 1988-09-02 光ピックアップ装置

Publications (3)

Publication Number Publication Date
EP0357323A2 EP0357323A2 (fr) 1990-03-07
EP0357323A3 true EP0357323A3 (fr) 1991-01-30
EP0357323B1 EP0357323B1 (fr) 1994-06-22

Family

ID=16739786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89308520A Expired - Lifetime EP0357323B1 (fr) 1988-09-02 1989-08-23 Dispositif de tête de lecture optique

Country Status (4)

Country Link
US (1) US5065380A (fr)
EP (1) EP0357323B1 (fr)
JP (1) JPH0758559B2 (fr)
DE (1) DE68916342T2 (fr)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5283690A (en) * 1989-04-04 1994-02-01 Sharp Kabushiki Kaisha Optical diffraction grating element
DE69128808T2 (de) * 1990-04-12 1998-07-23 Matsushita Electric Ind Co Ltd Optischer Kopf mit hologrammverbundener Objektivlinse
JPH0721869B2 (ja) * 1990-04-20 1995-03-08 シャープ株式会社 光ピックアップ装置
JP2684822B2 (ja) * 1990-06-06 1997-12-03 松下電器産業株式会社 光ピックアップヘッド装置
JP3028854B2 (ja) * 1990-07-18 2000-04-04 セイコーエプソン株式会社 光ヘッド及び光記憶再生装置
JP2866160B2 (ja) * 1990-07-19 1999-03-08 パイオニア株式会社 光学式ディスクプレーヤ
JP2998807B2 (ja) * 1990-07-19 2000-01-17 パイオニア株式会社 光学式ディスクプレーヤ
NL9002007A (nl) * 1990-09-12 1992-04-01 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
JPH05144054A (ja) * 1991-11-15 1993-06-11 Pioneer Electron Corp 光ピツクアツプ装置及び光ピツクアツプ装置における傾斜制御装置
CN1047454C (zh) * 1992-08-12 1999-12-15 皇家菲利浦电子有限公司 对于光记录载体进行光学扫描用的装置
JPH06111334A (ja) * 1992-09-24 1994-04-22 Sony Corp 円盤状記録媒体用の記録及び／又は再生装置、光検出器及び光ヘッド
KR950005033B1 (ko) * 1992-11-06 1995-05-17 주식회사금성사 광픽업 장치
JPH06302003A (ja) * 1993-04-12 1994-10-28 Rohm Co Ltd 光ピックアップ
JPH07114746A (ja) * 1993-08-25 1995-05-02 Sony Corp 光学装置
JP2605600B2 (ja) * 1993-10-18 1997-04-30 日本電気株式会社 光ヘッド
JP3161891B2 (ja) * 1993-11-16 2001-04-25 松下電器産業株式会社 ディスクチルト検出装置およびディスクチルト補正装置
JP3318636B2 (ja) * 1994-03-31 2002-08-26 ソニー株式会社 サーボ装置、光ディスク再生装置
JP3660415B2 (ja) * 1995-02-07 2005-06-15 富士通株式会社 光学記憶装置用光学デバイス
JPH08221789A (ja) * 1995-02-14 1996-08-30 Matsushita Electric Ind Co Ltd 光情報処理装置
US5923631A (en) * 1995-09-07 1999-07-13 Canon Kabushiki Kaisha Optical information recording/reproducing apparatus including a beam axis adjusting device for adjusting a position of a beam incident to a diffraction grating
JPH1049290A (ja) 1996-08-05 1998-02-20 Sony Corp 情報処理装置および方法
CN1139918C (zh) * 1997-02-24 2004-02-25 三洋电机株式会社 光读出装置及使用该装置的光学记录媒体驱动装置
JPH10269616A (ja) * 1997-03-19 1998-10-09 Fujitsu Ltd 光ピックアップ
US5808985A (en) * 1997-04-07 1998-09-15 Eastman Kodak Company Tilt error signal producing apparatus using multiple tracking error signals
JPH11273116A (ja) * 1998-03-20 1999-10-08 Fujitsu Ltd 光学的情報記憶装置
TW440818B (en) * 1999-06-05 2001-06-16 Ind Tech Res Inst Device and method for obtaining and calibrating compact disk's tilt error signals
JP3384393B2 (ja) * 1999-12-15 2003-03-10 日本電気株式会社 光ヘッド装置及び光学式情報記録再生装置並びにラジアルチルト検出方法
EP1115111B1 (fr) * 2000-01-06 2004-11-10 Samsung Electronics Co., Ltd. Tête optique
DE60129178T2 (de) * 2000-02-10 2008-03-13 Sony Corp. Optisches Abtastgerät, Neigungserkennungsvorrichtung, Neigungserkennungsverfahren, und optisches Plattengerät
US7035196B2 (en) * 2000-03-14 2006-04-25 Matsushita Electric Industrial Co., Ltd. Optical head device and optical recording and reproducing apparatus having lasers aligned in a tangential direction
JP3456579B2 (ja) 2000-04-20 2003-10-14 日本電気株式会社 光ヘッド装置および光学式情報記録再生装置
KR100739661B1 (ko) 2000-04-28 2007-07-13 삼성전자주식회사 광기록재생기기용 에러신호 검출방법 및 장치
WO2002021520A1 (fr) * 2000-09-06 2002-03-14 Hitachi, Ltd. Tête optique et dispositif à disque optique
JP2002163830A (ja) 2000-11-24 2002-06-07 Toshiba Corp 光学的収差を利用した光情報処理システムおよび厚みムラのある透明層で保護された記録層を持つ情報媒体
JP2002170265A (ja) * 2000-12-01 2002-06-14 Pioneer Electronic Corp チルトサーボ制御装置及び方法
JP3930784B2 (ja) * 2001-09-17 2007-06-13 シャープ株式会社 傾斜量検出装置
EP1527447B1 (fr) * 2002-07-26 2007-06-06 Koninklijke Philips Electronics N.V. Appareil lecteur de disque optique, procede pour mesurer l'inclinaison d'un disque optique et procede pour corriger l'inclinaison d'un disque optique
DE60324173D1 (de) * 2002-10-17 2008-11-27 Koninkl Philips Electronics Nv Optische scanning einrichtung mit neigungsdetektion
KR20050091756A (ko) * 2002-12-30 2005-09-15 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학 주사 장치용의 디스크 드라이브
US7577076B2 (en) 2003-03-14 2009-08-18 Ricoh Company, Ltd. Tilt sensor using diffraction grating
JP4207740B2 (ja) * 2003-10-15 2009-01-14 パナソニック株式会社 光ピックアップ
JP4177296B2 (ja) 2004-06-22 2008-11-05 シャープ株式会社 光ピックアップおよび光ディスク装置
JP2010009682A (ja) * 2008-06-27 2010-01-14 Panasonic Corp 光ヘッド装置、光情報処理装置及び信号検出方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123048A1 (fr) * 1983-02-28 1984-10-31 International Business Machines Corporation Tête de lecture holographique
DE3522849A1 (de) * 1984-06-27 1986-01-02 Canon Denshi K.K., Chichibu, Saitama Optischer kopf
EP0216637A2 (fr) * 1985-09-24 1987-04-01 Sony Corporation Détecteur d'inclinaison à réflexion et procédé de détection d'inclinaison utilisant le même
EP0228620A2 (fr) * 1985-12-10 1987-07-15 Nec Corporation Tête optique avec réseau de diffraction pour diriger deux ou plusieurs faisceaux lumineux diffractés sur des détecteurs optiques
EP0273356A2 (fr) * 1986-12-25 1988-07-06 Nec Corporation Tête optique
EP0351953A2 (fr) * 1988-06-20 1990-01-24 Mitsubishi Denki Kabushiki Kaisha Tête optique avec servo-mécanisme pour la correction d'inclinaison

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8100782A (nl) * 1981-02-18 1982-09-16 Oce Nederland Bv Electrokopieerapparaat voorzien van een fotogeleidende band en van middelen voor het vlakhouden van die band in een bewerkingszone.
JPS5942646A (ja) * 1982-08-31 1984-03-09 Sony Corp デイスク装置のラジアルスキユ−補正装置
JPS6222727U (fr) * 1985-07-23 1987-02-12
US4983017A (en) * 1988-08-02 1991-01-08 Sharp Kabushiki Kaisha Optical head device for reading information stored in a recording medium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123048A1 (fr) * 1983-02-28 1984-10-31 International Business Machines Corporation Tête de lecture holographique
DE3522849A1 (de) * 1984-06-27 1986-01-02 Canon Denshi K.K., Chichibu, Saitama Optischer kopf
EP0216637A2 (fr) * 1985-09-24 1987-04-01 Sony Corporation Détecteur d'inclinaison à réflexion et procédé de détection d'inclinaison utilisant le même
EP0228620A2 (fr) * 1985-12-10 1987-07-15 Nec Corporation Tête optique avec réseau de diffraction pour diriger deux ou plusieurs faisceaux lumineux diffractés sur des détecteurs optiques
EP0273356A2 (fr) * 1986-12-25 1988-07-06 Nec Corporation Tête optique
EP0351953A2 (fr) * 1988-06-20 1990-01-24 Mitsubishi Denki Kabushiki Kaisha Tête optique avec servo-mécanisme pour la correction d'inclinaison

Also Published As

Publication number Publication date
DE68916342T2 (de) 1994-12-15
JPH0758559B2 (ja) 1995-06-21
US5065380A (en) 1991-11-12
EP0357323A2 (fr) 1990-03-07
JPH0268734A (ja) 1990-03-08
DE68916342D1 (de) 1994-07-28
EP0357323B1 (fr) 1994-06-22

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